Two sides of a triangle measure 4 cm and 7 cm. Which one of the following CANNOT be a measure of the third side? (1) 4 cm (2) 5 cm […]
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DBT BET JRF 2019 Previous Year Questions and Video solution
How to Make 0.4 M HCl from 28% w/w Concentrated HCl
To make 2 liters of 0.4 M HCl, how many ml of 28% w/w HCl (specific gravity = 1.15) is required? (1) 80.7 (2) 90.7 (3) 100.7 (4) 110.7 How […]
DBT BET JRF 2019 Previous Year Questions and Video solution
What Is the pH of 0.001 M HCl? A Simple Guide to pH Calculation
The pH of a 0.001 molar HCl solution in H2O is: (1) 1 (2) 2 (3) 3 (4) 4 What Is the pH of 0.001 M HCl in Water? If […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How to Prepare a TE Buffer Using Stock Solutions of Tris and EDTA
A TE buffer contains 200 mMTris and 50 mM EDTA. Given the stock solutions – 0.5 M Tris and 0.5 M EDTA, volumes of stock solutions required to make 1 […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How Many Runs Should a Cricketer Score to Increase Batting Average
A cricketer has an average of 62 runs after playing 25 innings. How many runs should he score in the next innings so as to increase his average to 65 […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How to Calculate the Specific Growth Rate of Organisms Using Monod Growth Model
What is 10 / 8 (1) 2 (2) 1.25! (3) 90 (4) 1.25 Calculating the Specific Growth Rate Using the Monod Growth Model The Monod growth model is a widely […]
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How to Calculate the Specific Growth Rate of Organisms Using Monod Growth Model
An organism exhibits Monod growth with the following growth parameters, µm= 0.6 h -1 & Ks = 4 g/l. The specific growth rate, µ, of the organism at a substrate […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How Organic Solvents Affect Protein Precipitation: Key Insights
With reference to protein precipitation by organic solvents, which one of the following statements is correct? (1) It is not influenced by pH. (2) It is dependent on the change […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Cytotoxic T Cells Recognize Antigens by MHC Class I Determinants
Cytotoxic T cells generally recognize antigen in association with: (1) class II MHC determinants (2) class I MHC determinants (3) class III MHC determinants (4) HLA-DR determinants Cytotoxic T Cells […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How Does the Egg Prevent Polyspermy?
Which one of the following assures prevention of polyspermy in an egg? (1) Activation of PI3 kinase (2)Cortical reaction (3) Acrosome reaction (4) Cross-linking between ZP1 and ZP3 Prevention of […]
